n. the state of being obligated to do or pay something
n. a personal relation in which one is indebted for a service or favor
n. a legal agreement specifying a payment or action and the penalty for failure to comply
n. 义务, 责任, 约束, 契约, 恩惠, 债务
[经] 待付款, 债务, 义务
1. You have an obligation to help your family.
你有责任帮助你的家人。
2. Students have an obligation to complete their assignments on time.
学生有义务按时完成作业。
3. It is our obligation to protect the environment for future generations.
保护环境是我们对未来世代的责任。